Conduit-support.



c. H. HOOK & w.1. BURKART.

CONDUIT SUPPORT. APPLlcAloN FILED oEc.19. |917.

1,274,715. Patented Augf, 1918.

WITNESSES @wat rrni) stains .rarer CHARLES HOWARD HOOK AND `VV1LEE-AM JOSEPH'BURKABT, 0F FITTSBURGrI-I, PENNSYL'- y VANIA. y

CONDUIT-SUPPORT.

Specification of Letters Patent.

Patented Aug. 6, 121%..

Application led December 19, 1917. Serial No. 207,987.

To all whom t may concern.'

Be 1t known that we, :CHARLES HOWARD Hoon and WILLIAM J. BURKART, residents of Pittsburgh, in the county of Allegheny,

.vide a support to go in an underground or closed conduit which will permit the ready longitudinal movement of a pipe supported thereon, which will be self lubricating, and which will be adjustable in height. Other objects of the. invention will appear more fully in the following specification, and will be apparent to those familiar with the art.

portion of theconduit, showing the pipe and Y its supporting member; Fig. 5 is a section through a pipe support; and Fig. 4 is a plan view of the pipe supporting construction.

lin many cases it is desirable to put pipes in conduits underground. This is particularly true in case of pipes used to carry steam for heating purposes. Such pipes are subject to considerable variation in length because of contraction` and expansion with changes of temperature, and therefore it is 'desirable to have supporting members allowing the ready adjustment in length incident to such expansion and contraction. ForA this purpose we have constructed a special conduit, having a special member designed to be yused in combination with it for supporting a pipe.

The conduit itself cionsists of 'a'v crushed stone base 1, preferabl having a drain pipe 2 near the bottom o the stone. On this foundation a concrete base 3 is built. `The top of the concrete member is formed with a raised middle portion 4, forming twoshoulders 5 and 6, running longitudinally on the base. tile 7 is adapted to seat on the concrete base 3, the edges of the tile just fitting over the raised portion 4, and bearing Referring to the drawings, Figure l is a perspective viewl of the assembled conduit,l

against the shoulders 5 and 6. Outside of 'the tile, a joint formed by the tile and base is sealed by a concrete filling 8, running the entire length of the conduit.

The tile is preferably of a special construction, U-shaped in cross section. The interior proportions of the conduit formed are preferably about 10 units across by 12" units high. The sides are straight, connected by a circular arched top. This shape of conduit will go in a narrower ditch and will give the maximum available space for any given size of tile,--considerably more than where the tile is semi-circular. It gives Vertical sides through most of the height of the conduit permitting supporting members such as those below described to be used with the greatest possible economy of space, and permitting an effective joint between the tile and its supporting base. f

The pipe to be carried by the conduit is supported on a member comprising a base 10, having integral upward `extensions 11 at one end, through which pass a pin 12, forming a hinge-for lugs 13, on a supportingplate 14, carried atone end by the pin 12, and supported at the other endby bolts 15. These bolts have a rounded head 16, fitting in a groove or cavity 17,in the bottom4 of the base member 10, and they pass through oval shaped, or enlarged holes in the said member 10, permitting thegbolts to be turned outl of their vertical-position, as they are used to hold the member 14 at various elevations.V Nuts 18 and 19, threaded onthe upper ends of the bolts l5, furnish means for securing the plate 14 to the bolts,

through enlarged or elongated holestherein.

The raising and lowering of these nuts permits adjustment of the height of plate 14, as will be apparent.

On the plate 14 are mounted two supporting members 20, each of which consists of an upward extension from said plate, having a recess 21 therein forming bearing for rollers 22, between which extends a spindle 23, the middle portion of, which is enlarged to form. a concave roller 24, adapted to furnish a seat for a pipe 25, carried in the 1 conduit.

The rollers 21 are beveled edged, and

these beveled edges bear against beveled bearing shoulders 26, formed inthe walls 0f u the recesses 21. it will be apparent from the cross section shownin Fig. 2, that the recesses in the bearing members 20 extend below the beveled shoulders 26 and the loWer edges of the rollers 22 carried'therein. Consequently, when the recesses 21 are lled With oil or grease the roller 22 Willvbe constantly 4,lubricated from oil containedin the bearing itself. This construction insures that the bearings Will have a very smallamount of` friction, and having once been lubricated, they may be depended upon vto stay in good condition for a long period of time, which is an important feature since they are to be placed in conduits Where access for inspection and lubrication is difficult and infrequent. v

We claim: l v

l. A supporting device for pipes comprising a base, a supporting member pivotally mg terminal bevel-edged rollers rotatably mountedlin oilsretaining pockets forming bearings' for said rollers.

3. A supporting device for pipes in conduits comprising a member pivotally mounted at one end, means to adjustvthe height of the free end of the member, and a rotatable pipe rest carried on t-he member.

In testimony whereof We have hereunto set our hands.

CHARLES HOWARD HOOK. WILLAM JOSEPH BURKART.

connected one end to the base, a rotatable 

